To be fair, why would the fanbase care about Dunn's accomplishments prior to 2011? He could have been Babe Ruth through 2010, but that has no bearing on what he's done over the last two years or what he'll do in 2013 & 2014. Over the last two years, he hasn't been worth the $26 million he's been paid (really, not even close), and the prognosis does not look good for the next two years at $30 million.

Because you're trying to make educated decisions about whats best for the franchise going forward and only a completely crazy person would cut off 10 years of data and rely solely on 2.